LP3984

SNVS160F – OCTOBER 2001 – REVISED OCTOBER 2013

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DSBGA Mounting

The DSBGA package requires specific mounting techniques which are detailed in the AN-1112 Application

Report (SNVA009). Referring to the section PCB Layout ; note that the pad style which must be used with the 5-

pin package is NSMD (non-solder mask defined) type.

For best results during assembly, alignment ordinals on the PC board may be used to facilitate placement of the

DSBGA device.

DSBGA Light Sensitivity

Exposing the DSBGA device to direct sunlight will cause mis-operation of the device. Light sources such as

halogen lamps can affect electrical performance if brought near to the device.

The wavelengths which have most detrimental effect are reds and infra-reds, which means that the fluorescent

lighting used inside most buildings has very little effect on performance. A DSBGA test board was brought to

within 1 cm of a fluorescent desk lamp and the effect on the regulated output voltage was negligible, showing a

deviation of less than 0.1% from nominal.

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